Castle of the Winds features over 90 monster types across multiple categories. Monsters are generated based on dungeon level: deeper levels spawn harder creatures. Many monster types share graphics with palette swaps or recolored variants. Flavor text for each monster was written by Ben Goetter and is shown in the game when you first encounter a new type.
Below is a reference organized by category. Threat ratings are qualitative — relative difficulty at the dungeon depth where you'll first encounter them.
| Monster | Threat | Notes |
|---|---|---|
| Rat | Low | Basic dungeon vermin. Weak but aggressive in packs. First enemy most players encounter. |
| Giant Rat | Low | Larger, more dangerous variant of the common rat. |
| Bat | Low | Fast and annoying. Interrupt rest frequently in early levels. |
| Giant Bat | Low | Hit harder than bats but otherwise similar. |
| Wolf | Moderate | Pack hunters. Multiple can surround you quickly. |
| Brown Bear | Moderate | Multiple claw/bite attacks. Dangerous at the level you first encounter it. |
| Cave Bear | High | 8–10 feet tall. Stronger than the brown bear with vicious multi-hit melee. |
| Wolverine | Moderate | Fast and relentless. Hard to shake once it has your scent. |
| Wild Boar | Moderate | Charges deal extra damage. Avoid narrow corridors with these. |
| Puma | Moderate | Swift predator. Closes the distance faster than most animals. |
| Monster | Threat | Notes |
|---|---|---|
| Goblin | Low | Weak individually, dangerous in numbers. Common in early mine levels. |
| Hobgoblin | Low | Larger goblins with better weapons. |
| Orc | Moderate | Standard humanoid. Carry useful loot. |
| Orc Warrior | Moderate | Well-armored variant of the orc. |
| Orc Champion | High | Leads orc groups. Substantially tougher with enchanted equipment. |
| Smirking Sneak Thief | High | Can steal gold or belt items, then teleport to a random location. Requires three fireballs' worth of damage. Track it down to recover stolen goods. |
| Ogre | High | Large, powerful. Boss companion in Hrungnir's final room. |
| Huge Ogre | Dangerous | Hrungnir's personal guards. Fight the Giant Lord at your own peril. |
| Wolf-Man | High | Werewolf-type. Multiple attacks. Has a named boss leader. |
| Bear-Man | High | Werebear-type. Stronger than Wolf-Men. Has a named boss leader. |
| Necromancer | High | Casts spells; summons undead. A named necromancer appears as a boss in the story. |
| Monster | Threat | Notes |
|---|---|---|
| Skeleton | Low | Basic undead. Immune to poison. Use Transmogrify Monster to avoid attribute drain. |
| Zombie | Moderate | Slow but hard to kill. Can drain Constitution on hit. |
| Ghoul | Moderate | Paralyzing touch. Can freeze the player for several turns. |
| Shadow | High | Graphically rendered as a transparent version of the default male player icon. Drains Strength. |
| Shade | High | More powerful than Shadows. Also drains attributes. |
| Wraith | Dangerous | Powerful attribute-draining undead. Use Transmogrify Monster to avoid the fight entirely if under-leveled. |
| Wight | Dangerous | Experience-draining undead. Can reduce your level. |
| Vampire | Dangerous | Fast, drains HP and attributes. Deep dungeon threat. |
| Monster | Threat | Notes |
|---|---|---|
| Slime | High | Cannot be killed by weapon attacks. Magic only. Even a small blob will cling and grow on contact. |
| Gelatinous Glob | Moderate | Picks up items it walks over, potentially absorbing treasure. Good for inadvertent item collection. |
| Manticore | High | Can attack up to 6 times per turn with tail spikes (ranged). Use Slow Monster or approach in melee with high AV (80+). |
| Troll | High | Regenerates HP rapidly. Damage it faster than it heals. |
| Green Dragon | Dangerous | Breathes acid/poison. The strongest poison in the game — Neutralize Poison is essential. |
| Blue Dragon | Dangerous | Lightning breath. Resistance gear helps; Ball Lightning is less effective against it. |
| Red Dragon | Dangerous | Fire breath. Fire resistance strongly recommended in deep levels. |
| Abyss Fiend | Dangerous | Demon-type. Guards Surtur's final chamber in uncountable numbers. |
| Monster | Threat | Notes |
|---|---|---|
| Hill Giant | High | Throws boulders from a distance. Ranged attacks mean you can't safely kite these. |
| Stone Giant | Dangerous | Tougher than Hill Giants. Rugnir's escort. |
| Frost Giant | Dangerous | Cold attacks. Thrym's escort. |
| Fire Giant | Dangerous | Fire attacks. Thiassa's escort. Deep dungeon terror. |
| Boss | Part | Description & Strategy |
|---|---|---|
| Hrungnir, the Hill Giant Lord | I | Final boss of Part I. Found in a cross-shaped room on level 11 of the Fortress with 4 Huge Ogres as guards. Attacks the player on sight — so does every guard simultaneously. Throws boulders. Drops the Amulet of Kings on death. 6 Cold Balls or 5 Ball Lightnings are enough; stay at range and exploit his lower accuracy. |
| Shaggy Utgardhalok, the Hill Giant Lord | II | First Jotun king in Part II. Accompanied by 4 Hill Giants. Boulder-thrower. Toughest Hill Giant variant. |
| Rugnir, the Stone Giant King | II | Second Jotun king. 4 Stone Giant guards. Throw boulders. Requires higher AV and HP than Utgardhalok. |
| Thrym, the Frost Giant King | II | Third Jotun king. 4 Frost Giant guards. Throws ice balls (cold damage). Cold resistance recommended. |
| Great Thiassa, the Fire Giant Lord | II | Fourth Jotun king. 5 Fire Giant guards. Boulder-thrower. Fire resistance critical. Second-most dangerous boss in the game. |
| The Great Demon Lord, Surtur | II | FINAL BOSS. Caution: EXTREMELY DANGEROUS. Do not attempt melee. Calls down Lightning, Fire, and Wind simultaneously. Escorted by uncountable Abyss Fiends and a few Fire Giants. Defeating Surtur and escaping ends the game. |
Many monster types share the same base icon, distinguished only by color. This was a practical constraint of the 16-color Windows palette and the icon-based art approach. The Shadows and Shades — which appear as transparent versions of the default male player character — are a particularly striking use of this technique. The effect is lost when playing as a female character or with a custom icon.